Wrench.



WRENCH.

APPLICATION FILED AUG.9. 1916.

1,281,886. Patented Oct. 15, 1918.

HERMAN VOSS, OF HORICON, WISCONSIN.

WRENCH.

Specification of Letters Patent.

Patented Oct. 15, 1918.

Application filed August 9, 1916. Serial No. 113,981.

To all whom it may concern:

Be it known that I, HERMAN Voss, a citizen of the United States,residing at Horicon, in the county of Dodge and State of Wisconsin, haveinvented new and useful Improvements in Wrenches, of which the followingis a specification.

The present invention relates to pipe and nut wrenches.

The object of the invention is to produce a wrench which may be easilyand quickly operated to adjust the jaws thereof and which shall be of asimple construction and comparatively cheap to manufacture and operate.

With the above and other objects in view the improvement resides in theconstruction, combination and arrangement of parts set forth in thefollowing specification and falling within the scope of the appendedclaim.

In the drawing:

Figure 1 is an elevation of a wrench constructed in accordance with thepresent invention,

Fig. 2 is a sectional view approximately on the line 22 of Fig. 1,

Fig. 3 is a sectional view approximatelv on the line 33 of Fig. 2,

Fig. 4 is a sectional view approximately on the line 44 of Fig. 1, and

Fig. 5 is a perspective view of the frame or carriage.

Referring now to the drawing, the numeral 1 designates the handle of thewrench which has one of its ends rounded from its opposite edges andterminating in the toothed jaw 2. The numeral 8 designates the shank ofthe movable jaw 4 and the said shank has one of its edges provided withtransversely arranged substantially V- shaped teeth 5. The smooth edgeof the shank rests upon one of the edges of the handle 1 and overliesthe jaw 2 as clearly illustrated in the drawing. The numeral 6designates a frame or carriage that strad-. dles the shank of the jaw 4and the handle of" the jaw 2, the handle 1 being pivotally secured tothe said carriage, as at 7, and the carriage at its corner opposite thepivot is formed with a yoke member 8 that is provided upon its innersurface with a longitudinal depression 9 which provides a seat for afiat spring 10 that is secured to the handle 1, as at 11. The outerconnecting member for the frame or the member disposed away from thetoothed edge of the shank 3 is indicated by the numeral 12 and thismember is formed upon its inner surface with a longitudinally disposeddepression or channel 13 to receive a convolute spring 14, the oppositeends of said spring bearing against oifset members 14 providing fingerpieces 15 in dogs 16, the dogs being pivotally secured to the sides ofthe carriage 6, as at 17. These dogs are normally forced by the spring13 to engage with the teeth 5 of the shank of the jaw 4. The numeral 18designates a plate which is arranged between the sides of the carriage 6and is disposed over the toothed edge 5 of the shank 3. This plate hasits opposite ends centrally slotted, as at 19, whereby to re ceive theengaging ends of the dogs 16.

From the above description, taken in connection with the accompanyingdrawing, the simplicity of the device, as well as the advantages thereofwill, it is thought, be perfectly apparent to those skilled in the artt0 which such invention appertains without further detailed description.

Having thus descrlbed the invention, what I claim is:

A wrench comprising a relatively fixed jaw member, a. movable jaw memberslidably engaged upon one edge of said relatively fixed member, asubstantially inverted U-shaped carriage pivotally connected with saidfirst named jaw member and disposed in straddling relation to both ofsaid jaw members, a yoke formed on said carriage and extending outwardlybeyond the outer edge of said first named member, a leaf spring securedto the outer edge of said first named member and bearing against theinner edge of said yoke, a plurality of teeth formed on the outer edgeof said second named member, a pair of pawls pivoted within saidcarriage and having their ends engageable with said teeth, fingerengaging portions formed on said pawls and entirely inclosed within saidcarriage, and a coil. spring disposed between said finger engagingportions and urging said pawls into engagement with said teeth, movementof said finger engaging portions toward each other disengaging saidpawls from said teeth.

In testimony whereof I afiix my signature.

HERMAN VOSS.

Copies of this patent may be obtained. for five cents each, byaddressing the commissioner of Iatents, Washington, D. 6.

